PT-2020-16612 · Google · Android

Published 2020-12-15 · Updated 2021-07-21 · CVE-2020-27035

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android versions prior to Android-11

Description The issue is related to a possible use-after-free due to improper locking in the priorLinearAllocation of C2AllocatorIon.cpp. This could lead to local information disclosure in the media codec with no additional execution privileges needed. User interaction is not needed for exploitation.

Recommendations For Android versions prior to Android-11, update to Android-11 or a later version to resolve the issue. As a temporary workaround, consider restricting access to the media codec to minimize the risk of exploitation.

Fix

Improper Locking

Use After Free

Weakness Enumeration

CWE-667

CWE-416

Related Identifiers

CVE-2020-27035

Affected Products

Android

References · 4

• https://source.android.com/security/bulletin/pixel/2020-12-01 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-27035 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27035 · Security Note
• https://t.me/cibsecurity/20818 · Telegram Post